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Privacy policy


In order to participate in experiments at the Vanderbilt University Experimental Economics Lab, you must register in our database using the lab's online recruitment system. Part of this registration process involves acknowledging the following basic rules of conduct:

  • You can only register once in the database. Registering multiple accounts undermines our scientific research. Any participant found with more than one profile will be excluded from all future studies.
  • A certain number of registered persons will receive an invitation email to each experiment. The exact number is determined by the researcher conducting that experiment. Only the invited persons may take part in that experiment.
  • If you receive an invitation email, you must respond affirmatively in order to participate. Spaces in an experiment are limited, so it is important to respond early to better ensure that a space will still be available. Important Note: Once you respond affirmatively, you cannot later withdraw this response from the recruitment system, so please verify that you are actually able to come before you respond.
  • Usually, some extra persons are invited to ensure that a minimum participation level is achieved. However, you are guaranteed to receive compensation ($5) just for arriving for the experiment on time. Thus, even if more than enough participants show up, and you are turned away, you will be compensated.
  • Participants will usually be compensated based on the decisions they make during the experiment, and potentially the decisions of others. The exact amount of this payment is determined by the researcher conducting that particular experiment. However, our goal is to ensure that the amount is enough to strongly encourage continued participation in future experiments.
  • Important Note: After the scheduled start time, anyone who responded affirmatively to an invitation but did not show up will not receive any compensation for that experiment. In addition, he or she will marked as a "no-show." After two no-shows, he or she will be permanently removed from the database, and will be ineligible for any further experiments.
  • During an experiment, Participants must follow the directives of the researchers. The researchers will identify themselves before the commencement of the experiment.
  • There are no significant risks in our experiments. Nor are there any substantial benefits to you, other than any money that you receive.
  • All of the information that we obtain from you during any experiment will be kept confidential. We will not keep records of participants' identities and earnings. We will not use your name or identifying information in any reports of our research. We will not disclose your actions or results in the experiment to any other student, faculty member, friend, or parent.
  • Your participation in this research is voluntary, and you may withdraw at any time. There will no repercussions should you decide to not participate.

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